I think the war against a former employer is an interesting position to be in but anybody who actually believes in the "Dont Be Evil" slogan anymore is a fool, even if they work at Google.

It's not that they are evil, but I don't think they are particularly different from any of the other decent corporations out there. When it comes to war (and, yes, this is war), companies will go to extreme lengths to win. This means also using questionable tactics. And I'm talking about Google, Facebook and any other huge player that has lots to lose in a war.

These Xooglers who moved over, surely must have known that they were switching from one team to another. The majority of these people, in the end, probably moved over because of the money/IPO/stock. So I imagine they expect their employer to bring guns to a knife fight.